Supplemental Spray Foam Attachment Requirements

In this episode of The FORTIFIED Factor, the AI Experts (informed by Knockout Inspections) break down one of the most practical and often misunderstood upgrades in the FORTIFIED Roof™ standard: supplemental spray foam deck attachment.

Using guidance from the latest FORTIFIED Engineering Standard (FH 2015-04), we explore how two-part closed-cell spray polyurethane foam adhesive can strengthen your roof from the inside out—without needing a full roof replacement.

You’ll learn:

How spray foam can simultaneously seal your roof deck AND improve uplift resistance When this method is appropriate (and when it’s not)  The minimum uplift pressure requirements (110 psf and beyond) for compliance  Why proper installation and documentation are critical for FORTIFIED certification  Common attic access challenges that could impact eligibility This episode is a must-listen for homeowners, inspectors, and contractors looking to enhance roof performance—especially in hurricane- and high-wind-prone areas—without tearing off existing roofing materials.

If you’ve ever wondered how to upgrade your home’s resilience from the attic, this episode gives you the clarity you need.

📞 Have questions about your home or a FORTIFIED upgrade? Contact Knockout Inspections at 855-GO-FOR-KO (855-463-6756) or visit fortifiedhome.com to connect with a certified FORTIFIED Evaluator today.